1.1 This practice covers special procedures for selecting a material and tests for radiation studies, determining radiation conditions, conducting tests for the mechanical properties of irradiated metallic materials, and reporting of data.

1.2 The purpose of this practice is to achieve better correlation and interpretation of new data in the field of radiation effects testing.

1.3 While primarily intended to apply to ferrite and austenitic steels, this practice may be applied to any appropriate metallic materials. In addition to tests for mechanical properties, these procedures should be helpful in planning other types of radiation effects testing.

1.4 It should be recognized that the effect of high-energy neutron radiation on the mechanical properties of the materials being studied is determined by the change in mechanical properties during radiation. Hence, the post-irradiated mechanical properties must be compared with the pre-irradiation properties of the materials.